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Figure 1. Frost flowers on sea ice covering a lead: Stellar dendrites of about 1 to 2 cm height on young sea ice (Courtesy of Stefan Kern, University of Hamburg). The photograph was taken at 75 ◦ 58′N 25 ◦ 34′E, 24 March 2003. The air temperature was about-18◦C. Frost flowers (Fig. 1) grow on newly...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
| Subjects: | |
| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.554.4746 http://www.iup.physik.uni-bremen.de:8084/publications/igarss05.pdf |
| Summary: | Figure 1. Frost flowers on sea ice covering a lead: Stellar dendrites of about 1 to 2 cm height on young sea ice (Courtesy of Stefan Kern, University of Hamburg). The photograph was taken at 75 ◦ 58′N 25 ◦ 34′E, 24 March 2003. The air temperature was about-18◦C. Frost flowers (Fig. 1) grow on newly formed sea ice from a saturated water vapour layer. They considera-bly change the surface roughness and have a salinity three times higher than of standard sea water. Recent-ly, frost flowers have been recognised as the domi-nant source of sea salt aerosol in the Antarctic, and it seems that they are involved in processes causing severe tropospheric ozone depletion events during the polar sunrise (Kaleschke et al., 2004). |
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